Measurements:
°C
°F
St. George Island
78°F
W 11 mph
Feels like: 82°F
Precip: 40%
World Resorts USA St. George Island Weather

St. George Island Sea Water Temperature

Current Sea Water Temperature:
+86.6°F
Maximum Sea Water Temperature in October: 87.4°F
Minimum Sea Water Temperature in October: 72.8°F
Average water temperature in October: 80.2°F

Sea Water Temperature for the Last 10 Days:

October 05 86.6°F September 30 87.0°F
October 04 86.8°F September 29 87.6°F
October 03 87.0°F September 28 86.2°F
October 02 87.4°F September 27 87.0°F
October 01 87.4°F September 26 86.4°F

When is the Warmest Sea for St. George Island?

According to our data for the last three years for St. George Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for St. George Island was 90.8°F. The maximum and minimum values were 89.2°F and 92.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for St. George Island was 90.3°F. The maximum and minimum values were 88.2°F and 92.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for St. George Island was 89.1°F. The maximum and minimum values were 86.2°F and 91.0°F respectively.

Best Time to Visit St. George Island
The most sunny months:
October 20 days
March 16 days
April 16 days
The most warm months:
July 91.2 °F
August 90.6 °F
June 88.9 °F
Warmest sea temperature:
August 90.6 °F
July 89.6 °F
September 87.8 °F
The most cold months:
January 59.9 °F
December 63.9 °F
February 64.5 °F
The most rainy months:
August 5 days
July 4 days
September 3 days
The most windy months:
January 9 mph
November 9 mph
March 9 mph

St. George Island on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
St. George Island
Local time: 19:52
05 oct, monday
2100 78°F
W
11 mph
06 oct, tuesday
0000 76°F
W
11 mph
0300 76°F
W
11 mph
0600 76°F
W
11 mph
0900 76°F
W
11 mph
1200 76°F
W
11 mph
1500 76°F
W
16 mph
1800 76°F
W
19 mph